The Cloud of Unknowing

This book is a foundational text of Christian mysticism, written in the 14th century.

It advises readers to direct their full attention, love, and effort towards God by embracing a 'cloud of unknowing' that stands between them and God. The author emphasizes that God cannot be known through intellect but only through love and a deep, contemplative practice.

The text advocates for the abandonment of all worldly thoughts and distractions to focus solely on God, using a 'cloud of forgetting' to separate oneself from created things.

It is a guide for advanced spiritual seekers, outlining the stages of spiritual life including purgation, illumination, and union with God.